Bottle closure



1,681,976 H. DE WALLACE BOTTLE CLOSURE Filed April 22, 1927 Patented Aug. 28, 1928.

UNITED STATES 1,681,976 PATENT OFFICE.

HARRY DE WALLACE, 0F SYRACUSE, NEW YORK.

This invention relates to bottle closures, designed particularly for milk and other containers having depressed angular mouths, and has for its object to provide a one-piece substantially square'fibrous body having a depressed square central portion that seats upon the bottom of the recess of the mouth, the said central portion being skirted at its four sides by an integral apron that overlies the angular bead of the mouth, the said apron and said central portion being defined and separated by a continuous upwardly facing crease, the said crease being parallel to the-free margins of the apron, and the corners of said body being formed with an gular creases that intersect the continuous crease and enable the apron to be flexed and rolled to conform to the flare of the angular head of the mouth. And a further object is to generally improve and simplify the construction of bottle closuresof angular design, whereby the closures may be produced without waste of the fibrous material, and without any extra reinforcing parts.

I attain these objects by the means set forth in the detailed description which follows, and as illustrated by the accompanying drawing, in which- Figure 1 is a top plan view of a milk bottle, to which my angular closure is applied. Fig. 2 is a central vertical cross-section, taken on line 22 of Fig. 1, showing the closure in the sealing position. Fig. 3 is a fragmentary edge view of a plain strip of fibrous material, from which the square blanks are cut. Fig. 1- is a plan view of the same. Fig. 5 is a plan view of the closure, showing the blank creased for providing the square central portion; also showing the corners creased for facilitating the shaping of the angular apron. Fig. 6 is a vertical cross-section. taken on line 66 of Fig. 5, and Fig. 7 is a similar section showing the apron at the opposite sides of the blank slightly rolled.

In the drawing, 2 represents the body of an ordinary milk bottle, and 3 is the neck, which is surrounded by the usual annular bead 3-. Above the bead 3, the neck is formea with a substantially square bead or rib 4 whose outer walls 4 are preferably vertical and whose inner walls P are preferably flared. The square recess 5 defined by the rib 4 comprises the mouth of the bot tle whose depth is preferably substantially equal to the height of therib, and the bot- Application filed April 22, 1927.

BOTTLE CLOSURE.

Serial No. 185,848.

tom of the recess comprises a ledge 5, which parallels the top of the rib 4. The ledge 5 is'formed with a circular pouring opening 3 that communicates with the interior of the bottle 2.

My improved closure consists of a substantially square sheet of fibrous material, such for example, as pulp-board, which is preferably flexible, as well as slightly compress ble, and may be cut or stamped from a strip or sheet of the material, without any loss or waste, for providing a substantially square blank, 6 (see Figs. 3, 4 and The blanks 6 are usually fed into a suitable maehii that first forms a V-shaped crease. 6, of square configuration, by means of suitable dies, which also crease the four corners of the blank obliquely beyond the crease 6, as shown at 6, in Fig. 5. The corner creases are also V-shaped and preferably taper towards the corners of the blank, their broad ends intersecting the crease 6, for facilitating the folding or melding of the blank to conform to the flare and angularity of the relatively deep recess 5 (see Figs. 1 and 2). After the blanks 6 have been creased, as shown in Fig. 5. the latter operation is usually followed by a slight rolling or convexing of the four marginal portions, as 6 (see Fig. 7). The closure is then left in the latter state until delivered to the bottler. The partial rolling of the apron 6 by the molding machine leaves the blanks relatively thin and fiat (see Fig. 7) and enables the bottlcr to stack a large number of the closures in the usual magazines (not shown) from which they may be fed towards the capping position. The several creases 66 render the blanks sufficiently pliable to enable the capping plunger (not shown) to properly apply the closure to the recess 5. The plunger must necessarily be substantially square, and by squaring the outer walls 4; of the rib 4 enables the belt or other means that conveys the filled bottles towards the capping position, to accurately spot, or so dispose the bottles that their mouths always coincide with the plunger. The magazine should be square and also so positioned that when the closures are ejected, the latter may be brought into registry with the square mouths of the bottles. Substituting the square mouth bottle for the well-known circular mouth containers not only entirely eliminates all waste of the material when the blanks 6 arebeing prepared, but provides convenient means for pouring the milk or other contents of the bottles from one of the corners of the recess 5. This obviates all danger of slopping or spattering the milk, for the reason that the relatively sharp angles of the corners of the mouth provides pouring surfaces similar to the protruding pouring lips of the ordinary pitchers. When the mouths 5 of the bottles are properly molded and the closures are constructed and applied as herein shown and described, my angular closures afford safe, reliable and sanitary seals that are not liable to be loosened or displaced by ordinary handling of the bottles, and the closures may be produced by the expenditure of a small amount of labor without any waste and at extremely low cost. 7

Having thus described my invention, what I claim, is-

1. A closure for bottles having square recessed and beaded mouths comprising a substantially square body of fibrous material having a substantially square shaped crease spaced from the edges of the body and parallel to said edges, and diagonal creases con necting the corners of the first named creases with the adjacent corners of the body, the portions between the square crease and the edges of the body constituting a four-sided apron which latter extends upwardly and is curved outwardly, said diagonal creases being of V-form and having their apices extending from the corners of the body and flaring toward the corners of the square shaped crease and being adapted to engage in the corners of the angular recess of the bottle mouth.

2. A closure for bottles having square recessed and beaded mouths comprising a substantially square body of fibrous material having a substantially square shaped crease spaced from the edges of the body and par allel to said edges, and diagonal creases connecting the corners of the first named creases with the adjacent corners of the body, the portions between the square crease and the edges or" the body constituting a four-sided apron which latter extends upwardly and is curved outwardly, said diagonal creases being adapted to engage in the corners of the angular recess of the bottle mouth.

3. A closure for bottles having angular recessed beaded mouths including a fibrous body of angular form having creases parallel to and spaced from the respective angular edges of the body to provide a central part and an apron connecting the corners of the body with the adjacent corners of the central part, the parts of the apron between the diagonal creases being individually bent upwardly and. curved outwardly and the creases being adapted to engage in the corners of the angular recessed mouth of the bottle.

In testimony whereof I affix my signature.

HARRY DE WALLACE. 

